KR20040100163A - Sample extraction device for multiple solvent extraction divice - Google Patents

Abstract

PURPOSE: To provide a device for collecting sample of a multi-stage solvent extraction device, which is able to simultaneously collect samples from a plurality of settling tanks, thereby minimizing an error regarding concentration distribution of each stage, the error measured from the collected sample. CONSTITUTION: The device comprises a body (10), a plurality of feed guide bars (20), a lift plate (30), a lifting means and a plurality of supporting members. The body includes a lower supporting plate (50) that has a plurality of fixing grooves of a pipette outer case and corresponds to settling tanks and an upper supporting plate (60) that is spaced apart from the lower supporting plate by a plurality of supporting bars. The feed guide bars are installed between the upper and lower supporting plate perpendicularly thereto. The lift plate has a plurality of fixing grooves of a pipette piston corresponding to the fixing grooves of the pipette outer case and has a plurality of guide holes corresponding to the feed guide bars. The lifting means allows the lift plate to ascend or descend. The supporting members are installed on a peripheral portion of the lower supporting plate perpendicularly thereto and support the body on a multi-stage solvent extraction device to be spaced apart therefrom.

Description

Sampling device for multi-stage solvent extraction device {SAMPLE EXTRACTION DEVICE FOR MULTIPLE SOLVENT EXTRACTION DIVICE}

The present invention relates to a sampling device for collecting a sample mounted on a solvent extraction device, more specifically, a sample in each stationary tank of a multi-stage solvent extraction device in which a plurality of mixing tanks and a plurality of stationary tanks are alternately arranged in each row. It relates to a sampling device for a multi-stage solvent extraction device to be collected.

Solvent extraction device is a device used in the process of extracting and purifying the extraction target material dissolved in an arbitrary solution using a non-mixed solution having a different specific gravity.

Typically, various kinds of solvent extraction apparatuses, such as a pulsation tower type, a packed column type, and a mixer setter type (Mixer-Settler) type, are used.

The mixer setler-type solvent extracting apparatus basically includes a housing in which a mixing tank and a settler are formed, and a stirrer for mixing a solution of an aqueous phase and a solution of an organic phase in a mixing tank. In addition, a pipe is formed between the mixing tank and the stationary tank to connect each other to allow the flow of the mixed fluid.

For example, in the mixing tank, the aqueous phase in which the extraction target material is dissolved and the organic phase introduced for extraction are mixed evenly through the stirrer, and the extraction target dissolved in the aqueous phase is extracted as the organic phase in the mixing solution and included in the mixed solution. It is transferred to the fixed tank. In the fixed tank, the mixed solution is positioned in the state where the organic phase and the aqueous phase are divided up and down on the basis of the boundary level due to the specific gravity difference.

The mixer settler-type solvent extracting device has a housing in which a total of eight stationary tanks and eight mixing tanks arranged in two rows are alternately arranged in each row as shown in Korean Patent Application No. 2001-14570, and a stirrer in each mixing tank. It has been developed into a multi-stage solvent extraction apparatus having a mixing probe for use. The receiving phase is supplied at a constant flow rate through the supply port provided at one end, that is, the first end side, and the organic phase is also supplied at a constant flow rate through the supply port provided at the other end, i. . As the organic phase supplied to the eighth stage is transferred toward the first stage, the concentration of the extracting material gradually increases until the concentration of the extraction target material becomes saturated, and discharged through the discharge port of the organic phase of the first stage after reaching the saturation state. The concentration is maintained until

Sampling to measure the concentration distribution at each stage is required during the extraction process using the multi-stage solvent extraction device as described above. Collecting samples at the same time in each stage is not easy with a general sampling method. There was a problem.

In more detail, when a sample is taken from a solvent extraction device having a single stationary tank, it can be easily collected by a widely used method using a pipette or a pipette with multiple tips. In the multi-stage solvent extraction apparatus 100, which is composed of multiple stages and a continuous flow occurs, it is not easy to simultaneously sample a plurality of stationary tanks 110 provided in each stage. That is, as shown in Figure 3, using a pipette 130 to take a sample of the capacity required in any stationary tank 110, adjacent stationary tank 110 and mixing tank to maintain the balance of the water level Since the solution flows into the stationary tank 110 in which the sample is collected at 120, when the sample is collected by the sampling method according to the prior art, an error is inevitably followed in measuring the concentration distribution.

In order to solve the problems of the prior art as described above,

An object of the present invention is to be able to take a sample from a plurality of stationary tanks provided in the multi-stage solvent extraction device at the same time, thus multi-stage solvent extraction that can minimize the error of the concentration distribution of each stage measured through the sample collected It is to provide a sampling device for the device.

1 is an exemplary view showing a method according to the prior art for taking a sample from a multi-stage solvent extraction device,

Figure 2 is a front view showing a sample taking device for a multi-stage solvent extraction apparatus according to the present invention,

Figure 3 is a side view showing a sample taking device for a multi-stage solvent extraction apparatus according to the present invention,

Figure 4 is a perspective view of the lifting means according to the present invention.

5 is an exemplary view showing a sampling state of the sampling device for a multi-stage solvent extraction device according to the present invention.

* Description of the symbols for the main parts of the drawings *

5: handle 10: body

15: harvesting adjustment bolt 20: feed guide rod

25: ball bush 30: platform

35: pipette piston fixing groove 40: lifting means

45: pipette outer cylinder fixing groove 50: lower support plate

55: support pillar 60: upper support plate

65: engaging protrusion 70: height adjustment bolt

71: upper part 73: lower part

75: lifting link 80: link assembly

81: horizontal connecting bar 83: connecting rod

85: H type connecting member 90: Pneumatic cylinder

91: cylinder body 93: piston rod

95: direction control valve 99: stopper

100: multi-stage solvent extraction device 110: stationary tank

120: mixing tank 125: pipette outer cylinder

130: pipette 135: pipette piston

The present invention for realizing this,

In the sample collection device having a plurality of stationary tanks and a plurality of mixing tanks, one stationary tank and one mixing tank constitutes one stage to collect a sample in a multi-stage solvent extraction device consisting of a plurality of stages,

A body comprising a lower support plate having a plurality of pipette outer cylinder fixing grooves formed to correspond to the stationary tank, and an upper support plate positioned to have a predetermined distance on the lower support plate by a plurality of support rods;

A plurality of transfer guide rods installed vertically between the upper support plate and the lower support plate;

A lifting plate having a plurality of pipette piston fixing grooves formed to correspond to the pipette outer cylinder fixing grooves, and having a plurality of guide holes formed to correspond to the transfer guide rods;

Elevating means for raising or lowering the elevating plate; And

It is installed perpendicular to the edge of the lower support plate provides a sample collection device for a multi-stage solvent extraction device comprising a; a plurality of support members for supporting the body at a predetermined interval on the multi-stage solvent extraction device.

And a plurality of harvesting amount adjusting bolts installed vertically at a predetermined position of the elevating plate to adjust an initial interval between the lower support plate and the elevating plate; And

It is provided so as to project downward from the lower surface of the upper support plate characterized in that it further comprises a stopper for limiting the rising width of the rising plate.

In addition, the elevating means is composed of a pair of upper and lower ends, one end is hinged to the lower surface of the upper support plate and the one end is hinged to the upper surface of the elevating plate is connected to each other by a hinge coupling, each pair is formed in two or more pair It consists of a lifting link, a pair of horizontal connecting bars connecting each of the elevating links of the front row and the rear row by hinge coupling with the hinge coupling part in the middle of each lifting link of the front row and the rear row, and a connecting rod connecting the horizontal connecting bars to each other. A link assembly comprising an H-shaped connecting member;

A pneumatic cylinder having a cylinder body end hinged to a coupling protrusion projecting downward from the lower side of the upper support plate, and a piston rod side end hinged to the connecting rod; And

It characterized in that it comprises a; direction control valve for controlling the forward and backward of the pneumatic cylinder.

In addition, the support member is characterized in that the height adjustment bolt is installed vertically to enable height adjustment of the body.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the present invention will be described in more detail.

Sample collection device according to the present invention is to be able to take a sample from a plurality of stationary tanks 110 at the same time in a state placed on the multi-stage solvent extraction device 100, the body 10, transfer guide rod ( 20), elevating plate 30, elevating means 40, and a support member.

Then, sampling is carried out in a state where a pipette outer cylinder 125 having a flange portion projecting horizontally on the upper end and a pipette piston 135 including a pipette piston 135 having a flange portion projecting horizontally on the upper end are mounted. Will be performed.

The body 10 is composed of a rectangular lower support plate 50 and a rectangular upper support plate 60 coupled to the lower support plate 50 by a support pillar 55 to have a predetermined distance, and provided with a rectangular lower portion. When the sample is collected by four support members installed perpendicular to each corner of the support plate 50, the multi-stage solvent extraction apparatus 100 is mounted to have a predetermined interval. Here, the support member is preferably to use the height adjustment bolt 70 to enable the height adjustment of the body. And, the lower support plate 50 is provided with a pipette outer cylinder fixing groove 45 of the same number and the fixed tank formed in a position corresponding to the plurality of stationary tank 110 provided in the multi-stage solvent extraction device 100, each pipette outer cylinder The fixing groove 45 has an entrance formed at the front or rear side of the lower support plate 50 so that the flange portion of the pipette outer cylinder 125 can enter and exit horizontally.

The transfer guide rod 20 is installed vertically between the upper support plate 60 and the lower support plate 50, and a total of four pairs are installed on the left and right sides, respectively, to guide the shanghai of the lifting plate 30 to be described later. Done.

The lifting plate 30 is formed in a rectangular shape, and a transfer guide hole (not shown) is formed at four points corresponding to the positions of the transfer guide rod 20, and the upper support plate is restrained by the transfer guide rod 20. It rises or falls between the 60 and the lower support plates 50 within a predetermined range. In addition, by installing a ball bush (25: ball bush) in each of the transfer guide ball to reduce the friction with the transfer guide rod 20 to enable a smooth shanghai. In addition, the elevating plate 30 has the same number of pipette piston fixing grooves 35 as the pipette outer cylinder fixing grooves 45 formed at positions corresponding to the plurality of pipette outer cylinder fixing grooves 45 provided in the lower support plate 50. Each pipette piston fixing groove 35 is provided with an entrance formed in the front or rear side of the elevating plate 30, like the pipette outer cylinder fixing groove 45 formed in the lower support plate 50, the pipette piston 135 The upper flange part is allowed to enter and exit horizontally

The elevating means 40 provides power for raising or lowering the elevating plate 30, and is mainly composed of a link assembly 80, a pneumatic cylinder 90, and a direction control valve 95.

The link assembly 80 is composed of a total of four lifting links 75 which are located in pairs on the left and right sides, respectively, and an H type connecting member 85 connecting them. Here, each of the lifting link is configured by the upper end 71 hinged to one end of the upper support plate 60 and the lower end 73 hinged to the upper surface of the elevating plate 30 is hinged to each other. In addition, the H-type connecting member 85 is hinged at both ends of the elevating link 75 in the front row and the rear row, and both ends thereof are hinged to connect the elevating link 75 in the front row and the rear row, respectively. It consists of a pair of horizontal connecting bar 81 and the connecting rod 83 connecting the horizontal connecting bar 81 with each other.

The pneumatic cylinder 90 is hinged to the engaging projection 65 protruding downward from the lower surface side of the upper support plate 60, the end of the cylinder body 91, the end of the piston rod 93 is the central portion of the connecting rod 83 It is preferable to use a double-acting pneumatic cylinder which is installed to be hinged and capable of moving forward and backward.

Then, the direction control valve 95 is mounted to the body in connection with the pneumatic cylinder to control the forward and backward of the pneumatic cylinder 90 through the direction change of the pressure air supplied from the pneumatic circuit (not shown).

Such elevating means (40) is the angle between the upper and lower portions 71 and lower portion (73) constituting each elevating link 75 when the piston rod 93 of the pneumatic cylinder (90) is advanced, When the lifting plate 30 is raised and the piston rod 93 of the pneumatic cylinder 90 moves backward, the angles between the upper pieces 71 and the lower pieces 73 constituting each lifting link 75 are increased. In addition, the lifting plate 30 is lowered.

In addition to the above configuration, a pair of sampling amount adjusting bolts 15 are vertically installed at both ends of the elevating plate to adjust the minimum gap between the lower support plate 50 and the elevating plate 30, thereby providing a pipette 130. To control the amount of sample collected. In addition, a stopper 99 having a predetermined height is installed to protrude downward from the lower surface of the upper support plate 60, thereby limiting the rising width of the rising plate 30 to prevent excessive rising. In addition, the handle member 5 is installed on the upper surface side central portion of the upper support plate 60, so that the sample taking device according to the present invention can be easily installed in the multi-stage solvent extraction device 100 and the mobility is increased.

Hereinafter, the sampling process using the sample taking device for a multi-stage solvent extraction device according to the present invention.

First, the sampling device is raised on the multi-stage solvent extraction device 100 so that the centers of the fixing grooves 35 and 45 and the stationary tank 110 coincide with each other, and then the prepared sampling pipette 130 is mounted. That is, the flange portion of the pipette outer cylinder 125 is fitted into the pipette outer cylinder fixing groove 45 of the lower support plate 50, and the flange portion of the pipette piston 135 is fitted into the pipette piston fixing groove 30 of the elevating plate 30. To lose.

In this state, considering the size of the pipette 130 to be used for sampling and the depth to be inserted into the solution of the stationary tank 110 between the multi-stage solvent extraction device 100 and the body 10 through the height adjustment bolt 70 Adjust the interval between

Subsequently, by adjusting the sampling amount adjusting bolt 15 provided at both ends of the elevating plate 30 to adjust the sampling amount of each pipette 130, to set the minimum distance between the lower support plate 50 and the elevating plate 30 do.

Subsequently, the piston rod 93 of the pneumatic cylinder 90 is reversed by operating the directional control valve 95 to increase the angle between the upper and lower portions 71 and 73 of the lifting links 75, respectively. Lowering the elevating plate 30 until the lower end of the lower surface 15 is in contact with the upper surface of the lower support plate 50 to exhaust the air inside each pipette 130, and then operates the direction control valve 95 to pneumatically The piston rod 93 of the cylinder 90 is advanced to reduce the angles of the upper and lower portions 71 and 73 of the lifting links 75, thereby elevating the lifting plate 30, thereby increasing the inside of each pipette 130. Allow solution to be inhaled. In this process, the elevating plate 30 is constrained by the transfer guide rod 20 and all the elevating links 75 are connected by one H-shaped connecting member 85 so that each change in angle is kept uniform. The lifting plate 30 is raised and lowered while keeping the level. In other words, as the lifting plate 30 rises in a horizontal state, the lifting plate 30 in a state in which each pipette outer cylinder 125 is fixed to the pipette outer cylinder fixing groove 45 of the lower support plate 50. Each pipette piston 135 coupled to the pipette piston fixing groove 35 provided in the same rises so that the solution inside each stationary tank 110 is sucked into the pipette 130 simultaneously and in the same amount. Sampling is done in such a way.

Ascending the lifting plate 30 as necessary, the required amount of solution in each pipette 130 is sucked and the sample is completed, the height adjustment bolt 70 by operating the body 10 multi-stage solvent extraction device 100 Ascending to the maximum in the pipette 130 so that the bottom of the pipette 130 is exposed to the outside of the fixed tank 110, the pipette 130 containing the collected sample is removed from the sampling device to separate the sample of each pipette 130 sample The sampling process is completed by injection into the container.

Samples collected through such a process are each concentration measured through the analysis, so that it is possible to accurately know the concentration distribution inside the plurality of stationary tank 110 provided in each stage of the multi-stage solvent extraction device 100 will be.

The sample collection device for a multi-stage solvent extraction device according to the present invention as described above can be sampled simultaneously, quickly and by the same amount from a plurality of stationary tanks provided in the multi-stage solvent extraction device in which continuous flow occurs. As a result, the sampling operation can be easily performed, and since the solution inside each stationary tank is not mixed by the level difference during the collection, the reliability of the concentration distribution of each stage measured through the collected sample is significantly increased. It is to have an effect.

While the invention has been shown and described in connection with specific embodiments, it is conventional in the art that various changes, modifications and variations are possible without departing from the spirit and scope of the invention as indicated by the appended claims. Anyone with knowledge of this will easily know.

Claims (5)

A multi-stage solvent extracting device having a plurality of stationary tanks 110 and a plurality of mixing tanks 120, wherein one stationary tank 110 and one mixing tank 120 constitute a single stage. In the sampling device for collecting a sample at (100), The lower support plate 50 having a plurality of pipette outer cylinder fixing groove 45 formed to correspond to the stationary tank 110, and a plurality of support rods 55 to a predetermined interval on the lower support plate 50. A body 10 composed of an upper support plate 60 positioned to have; A plurality of transfer guide rods 20 installed vertically between the upper support plate 60 and the lower support plate 50; And a pipette piston fixing groove 35 formed to correspond to the pipette outer cylinder fixing groove 45, and having a plurality of guide holes formed to correspond to the transfer guide rod 20. A lifting plate 30 constrained by 20); Elevating means (40) for raising or lowering the elevating plate (30); And And a plurality of support members installed perpendicular to the edge of the lower support plate 50 to support the body 10 at predetermined intervals on the multi-stage solvent extraction apparatus 100. Sampling device for the device. The method of claim 1, And a plurality of harvesting amount adjusting bolts 15 installed vertically at a predetermined position of the elevating plate 30 to adjust an initial interval between the lower support plate 50 and the elevating plate 30. Sampling device for a multi-stage solvent extraction device. The method of claim 2, And a stopper (99) installed to protrude downward from the lower surface of the upper support plate (60) to limit the rising width of the lift plate (30). The method according to any one of claims 1 to 3, Each of the elevating means 40 has an upper end 71 hinged to one end of the upper support plate 60 and one lower end 73 hinged to an upper surface of the elevating plate 30, respectively. Two or more pairs of lifting links 75 arranged in a pair and arranged left and right, respectively, and hinge linkages between the hinge links in the middle of each lifting link 75 in the front row and the rear row, respectively. A link assembly (80) comprising an H-shaped connecting member (85) consisting of a pair of horizontal connecting bars (81) for connecting 75 and connecting bars (83) for connecting the horizontal connecting bars (81) to each other; A cylinder body 91 side end is hinged to the engaging projection 65 protruding downward from the lower surface side of the upper support plate 60, the pneumatic cylinder hinged to the connecting rod 83 side end of the piston rod (93) ( 90); And And a direction control valve (95) for controlling the forward and backward movement of the pneumatic cylinder (90). The method of claim 4, wherein The support member is a sample taking device for a multi-stage solvent extraction device, characterized in that the height adjustment bolt 70 is installed vertically to enable height adjustment of the body (10).